SB2014070709 - SUSE Linux update for PHP5
Published: July 7, 2014
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2013-4248)
The vulnerability allows a remote attacker to conduct MITM-attack on the target system.The weakness exists due to the openssl_x509_parse function in openssl.c in the OpenSSL module in PHP before 5.4.18 and 5.5.x before 5.5.2 does not properly handle a '' character in a domain name in the Subject Alternative Name field of an X.509 certificate. A remote attacker can use man-in-the-middle technique and spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
2) Buffer overflow (CVE-ID: CVE-2013-6420)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when the asn1_time_to_time_t function in ext/openssl/openssl.c in PHP before 5.3.28, 5.4.x before 5.4.23, and 5.5.x before 5.5.7 does not properly parse (1) notBefore and (2) notAfter timestamps in X.509 certificates. A remote attacker can supply specially crafted X.509 certificates, trigger memory corruption and cause the service to crash or execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) NULL pointer dereference (CVE-ID: CVE-2014-2497)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a crafted color table in an XPM file.
4) Heap-based buffer overflow (CVE-ID: CVE-2014-4049)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to heap-based buffer overflow in the php_parserr function in ext/standard/dns.c. A remote attacker can trigger memory corruption via a crafted DNS TXT record, related to the dns_get_record function and cause the service to crash or execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.